567 lines
15 KiB
PHP
567 lines
15 KiB
PHP
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<?php
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namespace Civi\Install;
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/**
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* Class Requirements
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* @package Civi\Install
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*/
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class Requirements {
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/**
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* Requirement severity -- Requirement successfully met.
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*/
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const REQUIREMENT_OK = 0;
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/**
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* Requirement severity -- Warning condition; proceed but flag warning.
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*/
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const REQUIREMENT_WARNING = 1;
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/**
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* Requirement severity -- Error condition; abort installation.
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*/
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const REQUIREMENT_ERROR = 2;
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protected $system_checks = array(
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'checkMemory',
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'checkServerVariables',
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'checkMysqlConnectExists',
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'checkJsonEncodeExists',
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);
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protected $database_checks = array(
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'checkMysqlConnection',
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'checkMysqlVersion',
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'checkMysqlInnodb',
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'checkMysqlTempTables',
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'checkMySQLAutoIncrementIncrementOne',
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'checkMysqlTrigger',
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'checkMysqlThreadStack',
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'checkMysqlLockTables',
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);
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/**
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* Run all requirements tests.
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*
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* @param array $config
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* An array with two keys:
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* - file_paths
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* - db_config
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*
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* @return array
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* An array of check summaries. Each array contains the keys 'title', 'severity', and 'details'.
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*/
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public function checkAll(array $config) {
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return array_merge($this->checkSystem($config['file_paths']), $this->checkDatabase($config['db_config']));
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}
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/**
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* Check system requirements are met, such as sufficient memory,
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* necessary file paths are writable and required php extensions
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* are available.
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*
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* @param array $file_paths
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* An array of file paths that will be checked to confirm they
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* are writable.
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*
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* @return array
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*/
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public function checkSystem(array $file_paths) {
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$errors = array();
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$errors[] = $this->checkFilepathIsWritable($file_paths);
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foreach ($this->system_checks as $check) {
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$errors[] = $this->$check();
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}
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return $errors;
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}
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/**
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* Check database connection, database version and other
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* database requirements are met.
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*
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* @param array $db_config
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* An array with keys:
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* - host (with optional port specified eg. localhost:12345)
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* - database (name of database to select)
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* - username
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* - password
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*
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* @return array
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*/
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public function checkDatabase(array $db_config) {
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$errors = array();
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foreach ($this->database_checks as $check) {
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$errors[] = $this->$check($db_config);
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}
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return $errors;
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}
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/**
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* Generates a mysql connection
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*
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* @param $db_confic array
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* @return object mysqli connection
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*/
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protected function connect($db_config) {
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$host = NULL;
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if (!empty($db_config['host'])) {
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$host = $db_config['host'];
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}
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elseif (!empty($db_config['server'])) {
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$host = $db_config['server'];
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}
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$conn = @mysqli_connect($host, $db_config['username'], $db_config['password'], $db_config['database'], !empty($db_config['port']) ? $db_config['port'] : NULL);
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return $conn;
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}
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/**
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* Check configured php Memory.
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* @return array
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*/
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public function checkMemory() {
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$min = 1024 * 1024 * 32;
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$recommended = 1024 * 1024 * 64;
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$mem = $this->getPHPMemory();
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$mem_string = ini_get('memory_limit');
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$results = array(
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'title' => 'CiviCRM memory check',
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'severity' => $this::REQUIREMENT_OK,
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'details' => "You have $mem_string allocated (minimum 32Mb, recommended 64Mb)",
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);
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if ($mem < $min && $mem > 0) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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}
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elseif ($mem < $recommended && $mem != 0) {
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$results['severity'] = $this::REQUIREMENT_WARNING;
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}
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elseif ($mem == 0) {
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$results['details'] = "Cannot determine PHP memory allocation. Install only if you're sure you've allocated at least 32 MB.";
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$results['severity'] = $this::REQUIREMENT_WARNING;
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}
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return $results;
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}
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/**
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* Get Configured PHP memory.
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* @return float
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*/
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protected function getPHPMemory() {
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$memString = ini_get("memory_limit");
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switch (strtolower(substr($memString, -1))) {
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case "k":
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return round(substr($memString, 0, -1) * 1024);
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case "m":
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return round(substr($memString, 0, -1) * 1024 * 1024);
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case "g":
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return round(substr($memString, 0, -1) * 1024 * 1024 * 1024);
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default:
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return round($memString);
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}
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}
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/**
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* @return array
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*/
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public function checkServerVariables() {
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$results = array(
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'title' => 'CiviCRM PHP server variables',
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'severity' => $this::REQUIREMENT_OK,
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'details' => 'The required $_SERVER variables are set',
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);
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$required_variables = array('SCRIPT_NAME', 'HTTP_HOST', 'SCRIPT_FILENAME');
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$missing = array();
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foreach ($required_variables as $required_variable) {
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if (empty($_SERVER[$required_variable])) {
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$missing[] = '$_SERVER[' . $required_variable . ']';
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}
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}
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if ($missing) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = 'The following PHP variables are not set: ' . implode(', ', $missing);
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}
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return $results;
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}
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/**
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* @return array
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*/
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public function checkJsonEncodeExists() {
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$results = array(
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'title' => 'CiviCRM JSON encoding support',
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'severity' => $this::REQUIREMENT_OK,
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'details' => 'Function json_encode() found',
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);
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if (!function_exists('json_encode')) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = 'Function json_encode() does not exist';
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}
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return $results;
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}
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/**
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* @return array
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*/
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public function checkMysqlConnectExists() {
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$results = array(
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'title' => 'CiviCRM MySQL check',
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'severity' => $this::REQUIREMENT_OK,
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'details' => 'Function mysqli_connect() found',
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);
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if (!function_exists('mysqli_connect')) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = 'Function mysqli_connect() does not exist';
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}
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return $results;
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}
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/**
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* @param array $db_config
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*
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* @return array
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*/
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public function checkMysqlConnection(array $db_config) {
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$results = array(
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'title' => 'CiviCRM MySQL connection',
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'severity' => $this::REQUIREMENT_OK,
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'details' => "Connected",
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);
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$conn = $this->connect($db_config);
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if (!$conn) {
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$results['details'] = mysqli_connect_error();
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$results['severity'] = $this::REQUIREMENT_ERROR;
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return $results;
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}
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if (!@mysqli_select_db($conn, $db_config['database'])) {
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$results['details'] = mysqli_error($conn);
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$results['severity'] = $this::REQUIREMENT_ERROR;
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return $results;
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}
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return $results;
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}
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/**
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* @param array $db_config
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*
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* @return array
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*/
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public function checkMysqlVersion(array $db_config) {
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$min = '5.1';
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$results = array(
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'title' => 'CiviCRM MySQL Version',
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'severity' => $this::REQUIREMENT_OK,
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);
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$conn = $this->connect($db_config);
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if (!$conn || !($info = mysqli_get_server_info($conn))) {
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$results['severity'] = $this::REQUIREMENT_WARNING;
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$results['details'] = "Cannot determine the version of MySQL installed. Please ensure at least version {$min} is installed.";
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return $results;
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}
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if (version_compare($info, $min) == -1) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = "MySQL version is {$info}; minimum required is {$min}";
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return $results;
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}
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$results['details'] = "MySQL version is {$info}";
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return $results;
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}
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/**
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* @param array $db_config
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*
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* @return array
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*/
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public function checkMysqlInnodb(array $db_config) {
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$results = array(
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'title' => 'CiviCRM InnoDB support',
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'severity' => $this::REQUIREMENT_ERROR,
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'details' => 'Could not determine if MySQL has InnoDB support. Assuming none.',
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);
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$conn = $this->connect($db_config);
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if (!$conn) {
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return $results;
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}
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$innodb_support = FALSE;
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$result = mysqli_query($conn, "SHOW ENGINES");
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while ($values = mysqli_fetch_array($result)) {
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if ($values['Engine'] == 'InnoDB') {
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if (strtolower($values['Support']) == 'yes' || strtolower($values['Support']) == 'default') {
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$innodb_support = TRUE;
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break;
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}
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}
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}
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if ($innodb_support) {
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$results['severity'] = $this::REQUIREMENT_OK;
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$results['details'] = 'MySQL supports InnoDB';
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}
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return $results;
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}
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/**
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* @param array $db_config
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*
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* @return array
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*/
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public function checkMysqlTempTables(array $db_config) {
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$results = array(
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'title' => 'CiviCRM MySQL Temp Tables',
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'severity' => $this::REQUIREMENT_OK,
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'details' => 'MySQL server supports temporary tables',
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);
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$conn = $this->connect($db_config);
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if (!$conn) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = "Could not connect to database";
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return $results;
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}
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if (!@mysqli_select_db($conn, $db_config['database'])) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = "Could not select the database";
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return $results;
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}
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$r = mysqli_query($conn, 'CREATE TEMPORARY TABLE civicrm_install_temp_table_test (test text)');
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if (!$r) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = "Database does not support creation of temporary tables";
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return $results;
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}
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mysqli_query($conn, 'DROP TEMPORARY TABLE civicrm_install_temp_table_test');
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return $results;
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}
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/**
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* @param $db_config
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*
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* @return array
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*/
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public function checkMysqlTrigger($db_config) {
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$results = array(
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'title' => 'CiviCRM MySQL Trigger',
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'severity' => $this::REQUIREMENT_OK,
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'details' => 'Database supports MySQL triggers',
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);
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$conn = $this->connect($db_config);
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if (!$conn) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = 'Could not connect to database';
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return $results;
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}
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if (!@mysqli_select_db($conn, $db_config['database'])) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = "Could not select the database";
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return $results;
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}
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$r = mysqli_query($conn, 'CREATE TABLE civicrm_install_temp_table_test (test text)');
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if (!$r) {
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$results['severity'] = $this::REQUIREMENT_ERROR;
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$results['details'] = 'Could not create a table to run test';
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return $results;
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}
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$r = mysqli_query($conn, 'CREATE TRIGGER civicrm_install_temp_table_test_trigger BEFORE INSERT ON civicrm_install_temp_table_test FOR EACH ROW BEGIN END');
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||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Database does not support creation of triggers';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
mysqli_query($conn, 'DROP TRIGGER civicrm_install_temp_table_test_trigger');
|
||
|
|
}
|
||
|
|
|
||
|
|
mysqli_query($conn, 'DROP TABLE civicrm_install_temp_table_test');
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param array $db_config
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function checkMySQLAutoIncrementIncrementOne(array $db_config) {
|
||
|
|
$results = array(
|
||
|
|
'title' => 'CiviCRM MySQL AutoIncrementIncrement',
|
||
|
|
'severity' => $this::REQUIREMENT_OK,
|
||
|
|
'details' => 'MySQL server auto_increment_increment is 1',
|
||
|
|
);
|
||
|
|
|
||
|
|
$conn = $this->connect($db_config);
|
||
|
|
if (!$conn) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not connect to database';
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$r = mysqli_query($conn, "SHOW variables like 'auto_increment_increment'");
|
||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not query database server variables';
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$values = mysqli_fetch_row($r);
|
||
|
|
if ($values[1] != 1) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'MySQL server auto_increment_increment is not 1';
|
||
|
|
}
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param $db_config
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function checkMysqlThreadStack($db_config) {
|
||
|
|
$min_thread_stack = 192;
|
||
|
|
|
||
|
|
$results = array(
|
||
|
|
'title' => 'CiviCRM Mysql thread stack',
|
||
|
|
'severity' => $this::REQUIREMENT_OK,
|
||
|
|
'details' => 'MySQL thread_stack is OK',
|
||
|
|
);
|
||
|
|
|
||
|
|
$conn = $this->connect($db_config);
|
||
|
|
if (!$conn) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not connect to database';
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!@mysqli_select_db($conn, $db_config['database'])) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not select the database';
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$r = mysqli_query($conn, "SHOW VARIABLES LIKE 'thread_stack'"); // bytes => kb
|
||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not query thread_stack value';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$values = mysqli_fetch_row($r);
|
||
|
|
if ($values[1] < (1024 * $min_thread_stack)) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'MySQL thread_stack is ' . ($values[1] / 1024) . "kb (minimum required is {$min_thread_stack} kb";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param $db_config
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function checkMysqlLockTables($db_config) {
|
||
|
|
$results = array(
|
||
|
|
'title' => 'CiviCRM MySQL Lock Tables',
|
||
|
|
'severity' => $this::REQUIREMENT_OK,
|
||
|
|
'details' => 'Can successfully lock and unlock tables',
|
||
|
|
);
|
||
|
|
|
||
|
|
$conn = $this->connect($db_config);
|
||
|
|
if (!$conn) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not connect to database';
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!@mysqli_select_db($conn, $db_config['database'])) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not select the database';
|
||
|
|
mysqli_close($conn);
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$r = mysqli_query($conn, 'CREATE TEMPORARY TABLE civicrm_install_temp_table_test (test text)');
|
||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not create a table';
|
||
|
|
mysqli_close($conn);
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$r = mysqli_query($conn, 'LOCK TABLES civicrm_install_temp_table_test WRITE');
|
||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not obtain a write lock';
|
||
|
|
mysqli_close($conn);
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
$r = mysqli_query($conn, 'UNLOCK TABLES');
|
||
|
|
if (!$r) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = 'Could not release table lock';
|
||
|
|
}
|
||
|
|
|
||
|
|
mysqli_close($conn);
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param $file_paths
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function checkFilepathIsWritable($file_paths) {
|
||
|
|
$results = array(
|
||
|
|
'title' => 'CiviCRM directories are writable',
|
||
|
|
'severity' => $this::REQUIREMENT_OK,
|
||
|
|
'details' => 'All required directories are writable: ' . implode(', ', $file_paths),
|
||
|
|
);
|
||
|
|
|
||
|
|
$unwritable_dirs = array();
|
||
|
|
foreach ($file_paths as $path) {
|
||
|
|
if (!is_writable($path)) {
|
||
|
|
$unwritable_dirs[] = $path;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($unwritable_dirs) {
|
||
|
|
$results['severity'] = $this::REQUIREMENT_ERROR;
|
||
|
|
$results['details'] = "The following directories need to be made writable by the webserver: " . implode(', ', $unwritable_dirs);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $results;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|